节点文献
高温合金雾化熔滴的热传输与凝固行为
HEAT TRANSFER AND SOLIDIFICATION BEHAVIOR OF SUPERALLOY DROPLETS DURING SPRAY FORMING
【摘要】 采用雾化过程热传输数学模型计算了高温合金雾化熔滴飞行速度、对流换热系数、温度分布、固相分数和冷却速度随熔滴尺寸和飞行距离的变化 ,给出了其变化趋势及引起变化的原因 ,并讨论了雾化压力和合金过热度对上述参数的影响
【Abstract】 A mathematical model was modified to calculate the velocity, heat transfer coefficient, temperature, solid fraction and cooling rate of atomizin droplets with various droplet size and flight distance for a superalloy, The changing trend as well as the mechanism were described and analyzed. The effects of atomizing pressure and superheating on the above parameters were discussed.
【关键词】 喷射成形;
高温合金;
热传输;
数学模型;
【Key words】 spray forming; superalloy; heat transfer; mathematical model;
【Key words】 spray forming; superalloy; heat transfer; mathematical model;
- 【文献出处】 粉末冶金技术 ,POWDER METALLURGY TECHNOLOGY , 编辑部邮箱 ,2000年02期
- 【分类号】TG132.32
- 【被引频次】32
- 【下载频次】311